Question about Bose QuietComfort 20 (Android Remote)

Very nice bass, but not "fat" (i.e. slightly overdone). Perhaps not ideal for massive bass. But then noise cancelling might not be necessary either ....

I would not describe the bass of the QC 20 as 'fat'. In my opinion, the sound is balanced. So if you really want a lot of bass, it might not be suitable. Of course, you could help it out with an equaliser - but that's a matter of taste. On the other hand, the noise cancelling is very strong. It's a relief when you're travelling with it on public transport... you're in another world.